Whenever a member posts a Quick Reply, it takes unlimited time to load the page. A simple reply or creating a new thread does not take that much time.
Do check out:
www.forum.hiraseo.com
Test account?? I get javascript errors from your Google ads which might be killing the quick reply javascript.
Also your forum is very slow, who's your host??
How do we check for a Javascript error on Google ads? Anyways, I have seen this same problem in another mybb forum. are you sure this is not a bug in Mybb forum platform?
No, because the errors specifically mentioned the Google ads, which aren't in MyBB. Just because other forums have the same issue doesn't mean it's a MyBB issue.
Unable to post message to http://googleads.g.doubleclick.net. Recipient has origin http://www.forum.hiraseo.com.
That's completely unrelated to core MyBB.
To see the errors use any browser that has a javascript debugger, Chrome, Firefox, even IE8 has one now.